생분해 코팅 환이 모르타르의 균열치유 균열치유에 미치는 영향 평가
- Resource Type
- Academic Journal
- Authors
- 이재윤 (Lee, Jae-Yun); 윤현섭 (Yoon, Hyun-Sub); 양근혁 (Yang, Keun-Hyeok)
- Source
- 대한건축학회논문집. 2023-01 39(1):285-293
- Subject
- 균열
자기치유
환
생분해 코팅
정수위 투수 시험
Crack
Self Healing
Pellet
Biodegradable Coating
Water Permeability Test
- Language
- Korean
- ISSN
- 2733-6239
2733-6247
This study developed a biodegradable coating approach for crack self-healing pellets produced using cementitious materials, bacteria to prevent physical damage and minimize previous reactivity with water from the pellets during the mixing phase of concrete. This study aims to examine the crack healing efficiency of biodegradable coating pellets through hydrostatic permeability tests using mortar specimens with nominal crack widths of 0.3 mm and 0.5 mm. Test results showed that the biodegradable coating pellets insignificantly affected the compressive strength gain of mortars. The crack healing rate due to the addition of these pellets was estimated to be 91-97% for crack width of 0.3 mm and 37-55% for crack width of 0.5 mm. These rates corresponded to a 10% higher efficiency when compared to that measured for non-coated pellets.